package com.atguigu.lease.web.app.service.impl;


import com.aliyun.dysmsapi20170525.Client;
import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.app.service.LoginService;
import com.atguigu.lease.web.app.service.UserInfoService;
import com.atguigu.lease.web.app.vo.user.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;

import java.util.Random;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private Client client;
    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private UserInfoService userInfoService;
    @Override
    public void sendCode(String phone) throws Exception {
        String key = RedisConstant.APP_LOGIN_PREFIX+phone;
        Boolean hasKey = redisTemplate.hasKey(key);
        if(hasKey){
            throw new LeaseException(ResultCodeEnum.APP_SEND_SMS_TOO_OFTEN);
        }
        String code = "";
        Random random = new Random();
        for (int i = 0; i < 6; i++) {
            code += random.nextInt(10);
        }
        System.out.println("code = " + code); //2457 + null2269
        SendSmsRequest smsRequest = new SendSmsRequest();
        smsRequest.setPhoneNumbers(phone);
        smsRequest.setSignName("阿里云短信测试");
        smsRequest.setTemplateCode("\n" +
                "SMS_154950909");
        smsRequest.setTemplateParam("{\"code\":\"" + code + "\"}\n");
        client.sendSms(smsRequest);

        //2.将验证码存储+phone作为key存储到redis中
        redisTemplate.opsForValue().set(key,code,RedisConstant.APP_LOGIN_CODE_TTL_SEC, TimeUnit.SECONDS);
    }

    @Override
    public String login(LoginVo loginVo) {
        if(ObjectUtils.isEmpty(loginVo.getPhone())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_PHONE_EMPTY);
        }
        if(ObjectUtils.isEmpty(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EMPTY);
        }
        String code = RedisConstant.APP_LOGIN_PREFIX+loginVo.getPhone();
        String value = (String) redisTemplate.opsForValue().get(code);
        if(ObjectUtils.isEmpty(value)){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EXPIRED);
        }
        if(!value.equals(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }
        LambdaQueryWrapper<UserInfo> lqw = new LambdaQueryWrapper<>();
        lqw.eq(UserInfo::getPhone,loginVo.getPhone());
        UserInfo userInfo = userInfoService.getOne(lqw);
        if(userInfo != null && userInfo.getStatus() == BaseStatus.DISABLE){
            throw new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
        }else if(userInfo == null){
            userInfo = new UserInfo();
            userInfo.setPhone(loginVo.getPhone());
            userInfo.setStatus(BaseStatus.ENABLE);
            userInfoService.save(userInfo);
        }
        return JwtUtil.createToken(userInfo.getId(),userInfo.getPhone());

    }
}
